Engine



(No Model.) 2 sheets sheet 1.

G. L. NEWCOMB.

PUMPING ENGINE.

No. 580,194. Patented Apr. 6, 1897.

UNITED STATES CHARLES L. NEIVCOMB, OF HOLYOKE,

MASSACHUSETTS, ASSIGNOR TO THE DEANE STEAM PUMP COMPANY, OF SAME PLACE.

PUMPING- ENGINE.

SPECIFICATION forming part of Letters Patent No. 580,194, dated April 6, 1897'.

Application filed February 1 5 J l 8 96.

T0 colt whom, it may concern.-

Be it known that 1, CHARLES L. NEwcoMB, a citizen of the United States, residing at Holyoke, in the county of Hampden and State of Massachusetts, have invented a new and useful Improvement in Pumping-Engines, of which the following is a specification, accompanied by drawings forming a part of the same, in which Figure 1 is a top view of apumping-engine embodying my improvement. Fig. 2 is a side view with a portion shown in section on line 2 2, Fig. 1. Fig. 3is an end view of the pump piston-rod. Fig. disavertical sectional view of the cross-head connecting with the steampiston, the section being shown on line 4, Fig. 2; and Fig. 5 is an end View of the cross-head connected with the driving-shaft, the pump piston-rod being shown in sectional view on line 5, Fig.

Similar letters refer to similar parts in the different figures.

The pumping-engine which forms the subject of my present invention comprises a pump-cylinder and a steam-cylinder with their inclosed pistons and a shaft driven independently of the steam-cylinder; and the object of my present invention is to provide means by which the piston of the pump-cylinder can be operatively connected with either the driving-shaft or the piston of the steamcylinder, so the pump-piston can be actuated directly from the steam-cylinder or from the rotating driving-shaft, as may be desired; and my invention consists in the construction and arrangement ofparts,asherein after described, and pointed out in the annexed claims.

In the accompanying drawings I have represented my invention as embodied in a dupleX pumping-engine comprising two pumpcylinders and two steam-cylinders andacommon driving-shaft. The actuating mechanism by which the pump-pistons are moved is, however, the same upon both sides of the pumping-engine, and a description of one side will therefore serve as a description of the opposite side. The pump-cylinders and their inclosed pistons are of the ordinary and wellknown form of construction, and therefore Serial No. 579,449. (No model.)

the pump-cylinders are represented in the drawings by top and side views only, their inclosed pistons not being shown.

A denotes the framework of the pumping engine, and A A the pump-cylinders.

B B denote the steam-cylinders,one of which is shown in central sectional view in Fig. 2. The steam-cylinders are each provided with a steam-chest B and slide-valve B havinga valve-stem B by which the steam-passages to the cylinder B are controlled in the usual manner. Each of the steam-cylinders B con tains a reciprocating piston B attached to a hollow piston-rod B which extends in opposite directions from the piston B and passes through the stuffing boxes B B at opposite ends of the steam-cylinder. One end of the hollow piston-rod B is attached to a reciprocating head C, carried upon the end of the hollow piston-rod. The head C is provided with a lug C, connected by a link C with an arm C which is attached to a rock-shaft C journaled in the framework of the machine and provided at its opposite end with a radial arm operatively connected with the reciprocating valve-stem upon the opposite side of the pump. Similarly the corresponding heads carried upon the opposite hollow piston-rod of the pump is connected in like manner with a rock-shaft C journaled in the framework of the machine and provided with a radial arm C, connected by a link C with the valve-stem B so the reciprocating motion of the heads C will actuate the steam-valves upon the opposite side of the pump.

J ournaled in the framework of the pump is a shaft D, carrying a belt-pulley D, by which the shaft D-is driven, and also a pinion D in mesh with a gear D on a shaft D provided at its ends with crank-plates D D, carrying crank-pins D, Fig. 2, which are connected by links D with reciprocating cross -heads D sliding in ways formed in the framework of the pump.

The pump-pistons, which are inclosed in the cylinders A A and not shown in the drawings, are carried upon piston-rods E E, which pass through the hollow steam piston-rods B Fig. 2, and are enlarged near their ends and provided with a hexagonal section E, to which a wrench is applied in order to turn the piston-rod, as hereinafter mentioned.

The end of the piston-rod E is provided with lugs E ll upon diametrically opposite sides of the piston-rods, as represented in Fig. 3, and a short distance from the end of the piston-rod and upon the opposite side of the hexagonal section E are similar lugs E E projecting from the piston-rod and in a plane at right angles with that of E The head C is provided with a circular chamber F, concentric with the piston-rod E, and having upon one side an elongated opening F, Fig. 4, having parallel sides F F forming lips F- F.

In Figs. 2 and at of the drawings the pistonrod E is shown as operatively connected with the reciprocating head 0, and the connection of the head C and piston E is effected by moving the head 0 along the rod E until the lugs E E are inclosed in the circular chamber F and turning the piston-rod E to bring the lugs E in a plane at right angles with that of the elongated opening F, so the ends of the lugs IE will be held by the lips F causing the reciprocating motion of the head 0, as it is moved by the steam piston-cylinder B to be imparted to the piston-rod E andits connected piston inclosed in the pump cylinder A. When the piston rod E is turned in position to connect it with the head 0, as shown in Figs. 2 and 4, lugs E at the end of the pistonrod Ecol-respond with an elongated opening G in the cross-head D which communicates with a circular chamber G in the cross-head D and concentric with the piston-rod E, and in this position the cross-head D and pistonrod E are each capable of independent movement, as the cross-head D is capable of moving back and forth over the end of the pistonrod E and the lugs E E The piston-rod E is disconnected from the head 0 and connected with the cross-head D as follows: The cross-head D is moved over the end of the piston-rod until the lugs E are brought within the circular chamber G. A

. wrench is applied to the hexagonal section E and the piston-rod E turned one-quarter of a revolution, bringing the lugs E into a plane at right angles with the elongated opening G, so they will be locked in the chamber G, and at the same time bringing the lugs E into the plane of the elongated opening F, so the head 0 can be moved independently of the rod E, the piston-rod E being then driven by the cross-head D The valve mechanism by which the passage of steam to the steam-cylinders B is controlled is connected to the heads 0, and is therefore directly connected with the steam-pistons B so that whenever steam is shut ofi from the steam-cylinders the heads 0 and connected valve mechanisms are thrown out of action, allowing the piston-rods E and connected pump-pistons to be actuated by power received through the belt-pulley D, thereby allowing the pump to be driven directly from a counter-shaft or other shaftin g of a mill, and whenever the shafting of the mill is stopped the pump may be driven by steam applied through the steam-cylinders B. The heads 0 and cross-heads D are provided with holes to receive a pin H, which in the drawings is represented as inserted in the head 0 and in contact with the side of the lugs E E thereby holding the piston-rod E against rotation and preventing it from becoming unlocked from the head 0. \Vhen the piston-rod E is connected with the cross-head D", the pin H is transferred from the head 0 to the cross-head D and inserted in a similar hole (indicated by broken lines 11 in Fig. 5) and held in contact with the sides of the lugs E The piston-rods E are conical upon each side of the hexagonal section E for a short distance, as at I I, and the head 0 and crosshead D are provided with tapering openings J J, corresponding with the conical sections I I, which are drawn into the openings J J whenever the lugs E or E are locked in their respective chambers F and G.

WVhat I claim as my invention, and desire to secure by Letters Patent, is

1. In a pumping-engine, the combination with a pump-cylinder and a piston contained therein, of a steam-cylinder, a reciprocating piston in said steam-cylinder, a hollow piston-rod attached to said steam-piston, a piston-rod attached to said pump-piston and inclosed within said hollow piston-rod, and

means for connecting said piston-rods,whereby the reciprocating motion of said steampiston will be imparted to said pump-piston,

substantially as described.

2. In a pumping-engine, the combination of a steam-cylinder and a pump-cylinder in alinement therewith, reciprocating pistons contained in said steam and pump cylinders,

a hollow piston-rod attached to said steam- IIO piston, a head attached to one end of said hollow piston-rod and containing a circular chamber concentric with the hole through said hollow piston-rod and an elongated opening communicating with said circular chamber,

a piston-rod attached to said pump-piston izo in alinement with said pump-cylinder and provided with concentric stuffing-boxes at opposite ends, a reciprocating piston contained in said steam-cylinder, a hollow piston-rod attached to said steam-piston and extending through said stuffing-boxes at each end of said steam-cylinder, a piston-rod attached to said pump-piston and inclosed in said hollow piston-rod, and means by which said pump piston-rod is disconnected with said hollow piston-rod, substantially as described.

4. In a pumping-engine, the combination of a pump-cylinder and a steam-cylinder in alinement therewith, pistons contained in said cylinders a hollow piston-rod attached to said steam-piston, and extending in opposite directions with a bearing in each end of said steam-cylinder, a head attached to said hollow piston-rod, a piston-rod attached to said pump-piston and passing through said hollow piston-rod and means by which said pump piston-rod is united to said head, substantially as described.

5. In a pumping-engine, the combination of a steam-cylinder and pump-cylinder in alinement therewith,pistons contained in said cylinders, ahollow piston-rod attached to said steam cylinder and extending from said steam-cylinder through opposite ends of said steam-cylinder, a head attached to said hollow piston-rod, valve mechanism by which the flow of steam to said steam-cylinder is controlled, connecting mechanism by which said valve mechanism is operatively connected with said head, a piston-rod attached to said pump-piston and inclosed in said hollow piston-rod, and means by which said pump piston-rod is connected with said head, whereby the reciprocating motion of said steamcylinder is imparted to said pump-cylinder, substantially as described.

6.In a pumping-engine, the combination with a pump-cylinder, and a piston contained therein, a steam-cylinder and a piston contained therein, of ahollowpiston-rod attached to said steam-piston, apiston-rod attached to said pump-piston and passing concentrically through said hollow piston-rod, means for connecting said pump piston-rod with said steam piston-rods, a rotating driving-shaft, a reciprocating cross-head operatively connected with said driving-shaft, and means for connecting said pump piston-rod with said recip rocating cross-head, whereby said pump-piston is driven by either said steam-piston or said driving-shaft, substantially as described.

7. In a pumping-engine, the combination with a steam-cylinder and reciprocating piston contained therein, of a piston-rod attached to said steam-piston, a head carried by said steam piston-rod'and provided with a circular concentric chamber and an elongated opening communicating therewith, a rotating driving-shaft, a reciprocating cross-head operatively connected with said shaft and pro- Vided with a circular chamber and an elongated opening communicating with said circular chamber, said circular chambers being in alinement, a pump-cylinder, a reciprocating piston in said pump-cylinder, a pistonrod attached to said pump-cylinder and en tering the head on said steam piston-rod and also said reciprocating cross-head, a pair of lugs projecting upon opposite sides of said pump piston-rod, and adapted to engage the head on said steam piston-rod, a second pair of lugs on said pump piston-rod arranged in a plane at right angles with said first pair of lugs and adapted to engage said reciprocating cross-head, whereby said pump pistonrod is connected with, or disconnected from said steam piston-rod, head or said reciprocatin g cross-head by a partial rotation of said pump piston-rod, substantially as described.

Dated the 4th day of February, 1896.

CHARLES L. NEWCOMB.

W'itnesses:

D. O. Juno, F. J. PHELPS. 

